Finding the Fourth Proportional to 196,916,213.48, 271,918,676.76 and 122,703,430.28
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Solution
The fourth proportional to 196,916,213.48, 271,918,676.76 and 122,703,430.28 is: 169,439,345.83
Step by Step Solution
- Step 1: Write the proportion equation
196,916,213.48 : 271,918,676.76 = 122,703,430.28 : x - Step 2: Convert to fraction form
196,916,213.48/271,918,676.76 = 122,703,430.28/x - Step 3: Cross multiply
196,916,213.48x = 271,918,676.76 × 122,703,430.28 - Step 4: Simplify right side
196,916,213.48x = 33,365,354,395,650,516 - Step 5: Solve for x
x = 33,365,354,395,650,516/196,916,213.48 - Step 6: Final answer
x = 169,439,345.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.